労働歯科衛生に関する研究-3-
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概要
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From 1955 in the Industrial Hygiene Week of October in every year, "the Tokyo Dental Association" has been performing the dental hygiene functions in the factories and works here in Tokyo City the objects of our studies 51, 063 sheets of mass clinical examination tables which had been filled up by the members of "the Association" from 1955 to 1957 and 5, 244 sheets of mass clinical examination tables by the Department of Hygiene of Nippon Dental College where they examined at their at certain times, of course in succession, and then the following results were obtained.<BR>(I). D.M.F. in an average number of teeth per person in each year had showed an decreasing tendency from 1955 forward yearly.<BR>(II). The common caries in an average number of teeth per person in each year showed an decreasing tendency from 1956 downward, showed especially low value in 1957, as for missing teeth, however, we observed no remarkable tendency going downward with years, while in the cases of treated teeth, an increasing tendency had been visible from 1956 onward yearly. The above-mentioned desirable tendencies were considerably observed from the rate of common caries, missing teeth and treated teeth in proportion to D.M.F.<BR>(III). Surface caries showed a yearly decrease from 1956 forward, showed especially low value in 1957 while deep seated caries increased, to some extent high in 1957 but no tendency a yearly increase perceived in root stump caries.<BR>(IV). Since the dental hygiene function performed in the factories and works here by "the Tokyo Dental Association" from 1955 forward yearly, common caries, cases have very much decreased, especially so in surface caries ones while evil cases of deep seated caries have largely gone away and treated ones increased considerably. These matter-of-facts, to be sure, owe, it was supporsed, to the functions performed by mass medical examinations when they discovered slight caries unknown to themselves as well as, so-called hopeful early treatment; both of these did bring this desirable results on the domain of dental hygienical applications in Tokyo City.
- 有限責任中間法人 日本口腔衛生学会の論文